Answer Happy

XQUESTION 5 Deduce the structures of the compounds given the following spectroscopic data: (a) MASS 100 1₁ 30 150 100 nV/z IR 100 HM 4000 3000 1000 2000 Wavenumber (cm-1) 'H NMR 300 MHz 2150 2100 H₂ 1000 950 450 400 He k 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 80 70 60 50 40 30 Tre "C/DEPT NMR 75.5 MHz 150 140 130 120 110 100 90 1.5 ppm p 20 ppm (12.5 marks)

3 MASS 100 50 % of Base Peak IR Transmittance 40 100 50 www S 50 4000 'H NMR 300 MHz ми 2060 SS Hz 60 --2947 S u 7.0 6.5 6.0 "C/DEPT NMR 75.5 MHz 180 160 140 70 80 3000 м ми T 2020 Hz 1820 5.5 5.0 mVz 120 2000 Wavenumber (cm-1) 100 90 Hz 4.0 80 11 100 110 120 mmary 3.5 60 3.0 15001- 1000 8 -741 -633 2.5 ppm ppm (12.5 marks)